Chicago Electric 94071 User manual

3” MINI TOOL GRINDER

Model 94071

ASSEMBLY AND OPERATING INSTRUCTIONS

3491 Mission Oaks Blvd., Camarillo, CA 93011

Visit our Web site at: http://www.harborfreight.com

manual or any artwork contained herein may be reproduced in any shape or form

without the express written consent of Harbor Freight Tools.

For technical questions, please call 1-800-444-3353.

TO PREVENT SERIOUS INJURY,

READ AND UNDERSTAND ALL WARNINGS

AND INSTRUCTIONS BEFORE USE.

PRODUCT SPECIFICATIONS

SAVE THIS MANUAL

You will need this manual for the safety warnings and precautions, assembly, operating,

inspection, maintenance and cleaning procedures, parts list and assembly diagram.

Keep your invoice with this manual. Write the invoice number on the inside of the front

cover. Keep this manual and invoice in a safe and dry place for future reference.

GENERAL SAFETY RULES

WARNING!

READ AND UNDERSTAND ALL INSTRUCTIONS

Failure to follow all instructions listed below may result in

electric shock, fire, and/or serious injury.

SAVE THESE INSTRUCTIONS

WORK AREA

1. Keep your work area clean and well lit. Cluttered benches and dark areas

invite accidents.

2. Do not operate power tools in explosive atmospheres, such as in the

presence of flammable liquids, gases, or dust. Power tools create sparks

which may ignite the dust or fumes.

SKU 94071 For technical questions, please call 1-800-444-3353 PAGE 2

Item Description

Electrical Requirements Power Input: 120VAC/60Hz

Motor: Single Speed / 3450 RPM

Power Cord Length: 6 Feet

Power Cord Plug Type: 3 Prong, Grounded

Power Switch Type: On/Off Rocker Switch

Grinding Wheel 3” Diameter x 1/2” Thick / 80 Grit / Aluminum Oxide

Buffing Wheel 3” Diameter x 3/8” Thick / Cotton

Arbor Size 1/2” Diameter

Mounting Holes 3/16” Diameter (Qty. 4)

Additional Features Non-Slip Rubber Pads (Removable),/ Tool Rest / Spark Shields

Accessories 8MM Spanner Wrench (Qty. 1) / 10MM Spanner Wrench (Qty. 1)

Overall Dimensions 5-1/8” H x 6-1/2” W x 4-1/2” D

Unit Weight 4.5 Pounds

3. Keep bystanders, children, and visitors away while operating a power tool.

Distractions can cause you to lose control. Protect others in the work area from

debris such as chips and sparks. Provide barriers or shields as needed.

ELECTRICAL SAFETY

4. Grounded tools must be plugged into an outlet properly installed and

grounded in accordance with all codes and ordinances. Never remove the

grounding prong or modify the plug in any way. Do not use any adapter

plugs. Check with a qualified electrician if you are in doubt as to whether

the outlet is properly grounded. If the tools should electrically malfunction or

break down, grounding provides a low resistance path to carry electricity away

from the user.

5. Double insulated tools are equipped with a polarized plug (one blade is

wider than the other). This plug will fit in a polarized outlet only one way. If

the plug does not fit fully in the outlet, reverse the plug. If it still does not

fit, contact a qualified electrician to install a polarized outlet. Do not

change the plug in any way. Double insulation eliminates the need for the

three wire grounded power cord and grounded power supply system.

6. Avoid body contact with grounded surfaces such as pipes, radiators,

ranges, and refrigerators. There is an increased risk of electric shock if your

body is grounded.

7. Do not expose power tools to rain or wet conditions. Water entering a power

tool will increase the risk of electric shock.

8. Do not abuse the Power Cord. Never use the Power Cord to carry the tools

or pull the Plug from an outlet. Keep the Power Cord away from heat, oil,

sharp edges, or moving parts. Replace damaged Power Cords immediately.

Damaged Power Cords increase the risk of electric shock.

9. When operating a power tool outside, use an outdoor extension cord

marked “W-A” or “W”. These extension cords are rated for outdoor use, and

reduce the risk of electric shock.

PERSONAL SAFETY

10. Stay alert. Watch what you are doing, and use common sense when

operating a power tool. Do not use a power tool while tired or under the

influence of drugs, alcohol, or medication. A moment of inattention while

operating power tools may result in serious personal injury.

SKU 94071 For technical questions, please call 1-800-444-3353 PAGE 3

11. Dress properly. Do not wear loose clothing or jewelry. Contain long hair.

Keep your hair, clothing, and gloves away from moving parts. Loose

clothes, jewelry, or long hair can be caught in moving parts.

12. Avoid accidental starting. Be sure the Power Switch is off before plugging

in. Carrying power tools with your finger on the Power Switch, or plugging in

power tools with the Power Switch on, invites accidents.

13. Remove adjusting keys or wrenches before turning the power tool on. A

wrench or a key that is left attached to a rotating part of the power tool may result

in personal injury.

14. Do not overreach. Keep proper footing and balance at all times. Proper

footing and balance enables better control of the power tool in unexpected

situations.

15. Use safety equipment. Always wear eye protection. Dust mask, nonskid

safety shoes, hard hat, or hearing protection must be used for appropriate

conditions.

TOOL USE AND CARE

16. Do not force the tool. Use the correct tool for your application. The correct

tool will do the job better and safer at the rate for which it is designed.

17. Do not use the power tool if the Power Switch does not turn it on or off.

Any tool that cannot be controlled with the Power Switch is dangerous and must

be replaced.

18. Disconnect the Power Cord Plug from the power source before making any

adjustments, changing accessories, or storing the tool. Such preventive

safety measures reduce the risk of starting the tool accidentally.

19. Store idle tools out of reach of children and other untrained persons. Tools

are dangerous in the hands of untrained users.

20. Maintain tools with care. Keep cutting tools sharp and clean. Properly

maintained tools with a sharp cutting edge are less likely to bind and are easier

to control. Do not use a damaged tool. Tag damaged tools “Do not use” until

repaired.

SKU 94071 For technical questions, please call 1-800-444-3353 PAGE 4

21. Check for misalignment or binding of moving parts, breakage of parts, and

any other condition that may affect the tool’s operation. If damaged, have

the tool serviced before using. Many accidents are caused by poorly

maintained tools.

22. Use only accessories that are recommended by the manufacturer for your

model. Accessories that may be suitable for one tool may become hazardous

when used on another tool.

SERVICE

23. Tool service must be performed only by qualified repair personnel. Service

or maintenance performed by unqualified personnel could result in a risk of injury.

24. When servicing a tool, use only identical replacement parts. Follow

instructions in the

“Inspection, Maintenance, And Cleaning”

section of this

manual. Use of unauthorized parts or failure to follow maintenance instructions

may create a risk of electric shock or injury.

SPECIFIC SAFETY RULES

1. Avoid serious eye injury. ALWAYS wear ANSI-approved safety impact eye

glasses underneath an ANSI-approved safety impact full face shield when

operating the Grinder.

2. Dress safely. Do not wear loose clothing or jewelry as they can become caught

in moving parts. Wear a protective hair covering to prevent long hair from

becoming caught in moving parts. If wearing long-sleeve shirt, roll sleeves up

above the elbows.

3. Make sure the Power Switch (7) is in its “OFF” position before plugging the

Power Cord/Plug (13) into an electrical outlet.

4. Do not abuse the Power Cord/Plug (13). Do not pull the Power Cord to

disconnect the Plug from an electrical outlet. Do not move the Grinder with the

Power Cord/Plug in the outlet. Keep the Power Cord/Plug away from heat, oil,

sharp, edges, and its own Buffing Wheel (39) and Grinding Wheel (40).

5. Never leave the Grinder unattended while it is running. Always turn off the

tool, unplug the tool from its electrical outlet, and wait until its wheels stop

rotating before leaving the area.

6. Never use the

sides

of the Grinding Wheel (40) to grind objects.

SKU 94071 For technical questions, please call 1-800-444-3353 PAGE 5

9. Never attempt to remove material stuck in the moving parts of the Grinder

while the tool is turned on, plugged in, or running.

10. Use light pressure when starting to grind. Too much pressure on a cold

Grinding Wheel (40) can cause the wheel to crack.

11. When replacing the Buffing Wheel (39) and/or Grinding Wheel (40), make

sure each wheel has a minimum 3500 RPM rating.

14. Turn off the Grinder, unplug its Power Cord/Plug (13) from its 120 volt,

grounded, electrical outlet, and allow the tool to completely stop prior

to performing any inspection, maintenance, or cleaning on the unit.

7. Keep all Guards in place and in proper working order.

8. Remove adjusting keys and wrenches. Check to make sure all adjusting keys

and wrenches are removed from this tool before turning it on.

15. Use the right tool or attachment for the job. Do not attempt to force a small

tool or attachment to do the work of a larger industrial tool. There are certain

applications for which this product was designed. It will do the job better and

more safely at the rate for which it was intended. Do not modify this product,

and do not use this product for a purpose for which it was not intended.

12. When replacing the Grinding Wheel (40), do not overtighten the Hex Nut

(41). Excessive tightening can cause the Grinding Wheel to crack during

operation. Be sure to reassemble all Flanges (37).

13. Adjust the distance between the Buffing Wheel (39)/ Grinding Wheel (40)

and Moveable Tool Rest (5) to maintain a 1/16” or less separation as the

diameter of the wheels decrease with use.

16. WARNING! Some dust created by power sanding, sawing, grinding,

drilling, and other construction activities, contain chemicals known (to the State of

California) to cause cancer, birth defects or other reproductive harm. Some

examples of these chemicals are: lead from lead-based paints, crystalline silica

from bricks and cement or other masonry products, arsenic and chromium from

chemically treated lumber. Your risk from these exposures varies, how often you

do this type of work. To reduce your exposure to these chemicals: work in a well

ventilated area, and work with approved safety equipment, such as those dust

masks that are specially designed to filter out microscopic particles.

(

California Health & Safety Code 25249.5, et seq.)

SKU 94071 For technical questions, please call 1-800-444-3353 PAGE 6

WARNING!

Improperly connecting the grounding wire can result in the risk of electric shock.

Check with a qualified electrician if you are in doubt as to whether the outlet is

properly grounded. Do not modify the power cord plug provided with the tool. Never

remove the grounding prong from the plug. Do not use the tool if the power cord or

plug is damaged. If damaged, have it repaired by a service facility before use. If the

plug will not fit the outlet, have a proper outlet installed by a qualified electrician.

GROUNDED TOOLS: TOOLS WITH THREE PRONG PLUGS

1. Tools marked with “Grounding Required” have a three wire cord and three prong

grounding plug. The plug must be connected to a properly grounded outlet. If

the tool should electrically malfunction or break down, grounding provides a low

resistance path to carry electricity away from the user, reducing the risk of electric

shock. (See Figure A, next page.)

19. WARNING! People with pacemakers should consult their physician(s)

before using this product. Operation of electrical equipment in close proximity to

a heart pacemaker could cause interference or failure of the pacemaker.

20. WARNING! The warnings, precautions, and instructions discussed in this

manual cannot cover all possible conditions and situations that may occur. The

operator must understand that common sense and caution are factors which

cannot be built into this product, but must be supplied by the operator.

SKU 94071 For technical questions, please call 1-800-444-3353 PAGE 7

17. Industrial applications must follow OSHA requirements.

18. Maintain labels and nameplates on the Grinder. These carry important

information. If unreadable or missing, contact Harbor Freight Tools for a

replacement.

GROUNDING

SAVE THESE INSTRUCTIONS

2. The grounding prong in the plug is connected through the green wire inside the

cord to the grounding system in the tool. The green wire in the cord must be the

only wire connected to the tool’s grounding system and must never be attached

to an electrically “live” terminal. (See Figure A.)

3. Your tool must be plugged into an appropriate outlet, properly installed and

grounded in accordance with all codes and ordinances. The plug and outlet

should look like those in the following illustration. (See Figure A.)

FIGURE A

DOUBLE INSULATED TOOLS: TOOLS WITH TWO PRONG PLUGS

4. Tools marked “Double Insulated” do not require grounding. They have a special

double insulation system which satisfies OSHA requirements and complies with

the applicable standards of Underwriters Laboratories, Inc., the Canadian

Standard Association, and the National Electrical Code. (See Figure B.)

5. Double insulated tools may be used in either of the 120 volt outlets shown in the

following illustration. (See Figure B.)

FIGURE B

THIS

PRODUCT

USES A

3-PRONG PLUG

SKU 94071 For technical questions, please call 1-800-444-3353 PAGE 8

EXTENSION CORDS

Grounded

tools require a three wire extension cord.

Double Insulated

tools

can use either a two or three wire extension cord.

2. As the distance from the supply outlet increases, you must use a heavier gauge

extension cord. Using extension cords with inadequately sized wire causes a

serious drop in voltage, resulting in loss of power and possible tool damage.

(See Figure C.)

3. The smaller the gauge number of the wire, the greater the capacity of the cord.

For example, a 14 gauge cord can carry a higher current than a 16 gauge cord.

(See Figure C.)

4. If using more than one extension cord to make up the total length, make sure

each cord contains at least the minimum wire size required. (See Figure C.)

5. If you are using one extension cord for more than one tool, add the nameplate

amperes and use the sum to determine the required minimum cord size.

(See Figure C.)

6. If you are using an extension cord outdoors, make sure it is marked with the suffix

“W-A” (“W” in Canada) to indicate it is acceptable for outdoor use.

7. Make sure your extension cord is properly wired and in good electrical condition.

Always replace a damaged extension cord or have it repaired by a qualified

electrician before using it.

8. Protect your extension cords from sharp objects, excessive heat, and damp or

wet areas.

RECOMMENDED MINIMUM WIRE GAUGE FOR EXTENSION CORDS*

(120 VOLT)

NAMEPLAT

AMPERES

(

At Full Load

)

EXTENSION CORD LENGTH

Feet

100

Feet

150

Feet

0 – 2.0 18 18 18 18 16

2.1 – 3.4 18 18 18 16 14

3.5 – 5.0 18 18 16 14 12

5.1 – 7.0 18 16 14 12 12

7.1 – 12.0 18 14 12 10 -

12.1 – 16.0 14 12 10 - -

16.1 – 20.0 12 10 - - -

* Based on limiting the line voltage drop

to five volts at 150% of the rated amperes.

FIGURE C

SKU 94071 For technical questions, please call 1-800-444-3353 PAGE 9

FIGURE D

SYMBOLOGY

Double Insulated

Canadian Standards

Association

Underwriters

Laboratories, Inc.

Volts Alternating Current

Amperes

No Load Revolutions

per Minute (RPM)

xxxx/min.

V ~

UNPACKING

When unpacking, check to make sure all the parts shown on the Parts List on page 14

are included. If any parts are missing or broken, please call Harbor Freight Tools at the

number shown on the cover of this manual as soon as possible.

ASSEMBLY INSTRUCTIONS

1. WARNING! Make sure the Power Switch (7) of the Grinder is in its

“OFF” position and its Power Cord/Plug (13) is unplugged from the

electrical outlet prior to performing any assembly.

To Attach The Right Moveable Tool Rest:

1. The

left

Moveable Tool Rest (5) has been pre-attached by the manufacturer.

However, the

right

Moveable Tool Rest (5) must be attached by the operator prior

to using the Grinder. (See Figure E, next page.)

2. To attach the right Moveable Tool Rest (5), insert its mounting slot onto the

protruding, threaded, Bolt located on the front of the Grinder. Then, secure the

Moveable Tool Rest, using the Wing Nut (6). IMPORTANT: Make sure to adjust

the distance between the Moveable Tool Rest and Grinding Wheel (40)

to a 1/16” or less separation. (See Figure E.)

SKU 94071 For technical questions, please call 1-800-444-3353 PAGE 10

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